<template>
  <div>
<!--    面包屑导航区域-->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>

<!--    卡片视图-->
    <el-card class="box-card">
<!--        搜索与添加区域-->
        <el-row :gutter="20">
          <el-col :span="8">
            <el-input placeholder="请输入内容" v-model="queryInfo.query" :clearable="true" @clear="getUserList">
            <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
          </el-input>
          </el-col>
          <el-col :span="4">
            <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
          </el-col>
        </el-row>

<!--      用户表格-->
      <el-table :data="userList" border stripe>
        <el-table-column type="index" label="#"></el-table-column>
        <el-table-column label="姓名" prop="username">
        </el-table-column>
        <el-table-column label="邮箱" prop="email">
        </el-table-column>
        <el-table-column label="电话" prop="mobile">
        </el-table-column>
        <el-table-column label="角色" prop="role_name">
        </el-table-column>
        <el-table-column label="状态" prop="mg_state">
          <template slot-scope="scope">
            <el-switch v-model="scope.row.mg_state" @change="userStateChanged(scope.row)"></el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="180">
          <template slot-scope="scope">
<!--            操作按钮-->
<!--            修改按钮-->
            <el-tooltip effect="dark" content="编辑" placement="top" :enterable="false">
            <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)"></el-button>
            </el-tooltip>
<!--            删除按钮-->
            <el-tooltip effect="dark" content="删除" placement="top" :enterable="false">
            <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeUserById(scope.row.id)"></el-button>
            </el-tooltip>
<!--            分配角色按钮-->
            <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
            <el-button type="warning" icon="el-icon-setting" size="mini" @click="setRole(scope.row)"></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
<!--      分页-->
      <el-pagination
          @size-change="handleSizeChange"
          @current-change="handleCurrentChange"
          :current-page="queryInfo.pagenum"
          :page-sizes="[1,2,5,10]"
          :page-size="queryInfo.pagesize"
          layout="total, sizes, prev, pager, next, jumper"
          :total="total">
      </el-pagination>
    </el-card>
<!--添加用户对话框-->
    <el-dialog
        title="添加用户"
        :visible.sync="addDialogVisible"
        width="50%"
        @close="addDialogClose">
<!--      主体内容-->
      <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
<!--      底部按钮区域-->
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>
<!--修改用户对话框-->
    <el-dialog
        title="修改用户信息"
        :visible.sync="editDialogVisible"
        width="50%"
        @close="editDialogClose">
      <el-form :model="editForm" ref="editFormRef" label-width="70px" :rules="editFormRules">
        <el-form-item label="用户名" >
          <el-input :value="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机号" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
<!--      底部按钮-->
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUserInfo">确 定</el-button>
      </span>
    </el-dialog>

<!--    分配角色的对话框-->
    <el-dialog
        title="分配角色"
        :visible.sync="setRoleDialogVisible"
        width="50%" @close="setRoleDialogClosed">
      <div>
        <p>当前用户：{{userInfo.username}}</p>
        <p>当前角色：{{userInfo.role_name}}</p>
        <p>分配新角色：
          <el-select v-model="selectedRoleId" placeholder="请选择">
            <el-option
                v-for="item in rolesList"
                :key="item.id"
                :label="item.roleName"
                :value="item.id">
            </el-option>
          </el-select>
        </p>
        <p></p>
      </div>
<!--      底部按钮-->
       <span slot="footer" class="dialog-footer">
        <el-button @click="setRoleDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  name: "Uses",
  data(){
    //校验邮箱
    const checkEmail = (rule,value,callback)=>{
      // 验证邮箱的正则表达式
      const regEmail = /^[a-zA-Z0-9_-]+@([a-zA-Z0-9])+(\.[a-zA-Z0-9_-])+/
      if(regEmail.test(value)){
        return callback()
      }
      callback(new Error("请输入合法的邮箱"))
    }
    //校验手机号
    const checkMobile = (rule,value,callback)=>{
      //验证手机号的正则
      const regMobile = /^(0|86|17951)?(13[0-9]|15[0123456789]|17[678]|18[0-9]|14[57])[0-9]{8}$/
      if(regMobile.test(value)){
        return callback()
      }
      callback(new Error("请输入合法的手机号"))
      }
    return{
      // 获取用户列表所需参数
     queryInfo:{
       // 当前页数，默认每页两条
       // 搜索关键字参数
       query:"",
       pagenum:1,
       pagesize:2
     },
      userList:[],
      //总条数
      total:0,
      // 控制添加用户对话框的显示和隐藏
      addDialogVisible:false,
      // 添加用户的表单
      addForm:{
       username:"",
        password:"",
        email:"",
        mobile:""
      },
      //添加表单的验证规则对象
      addFormRules:{
       username:[
         { required:true,message:"请输入用户名",trigger:"blur"},
         {min:3,max:10,message: "用户名的长度在3~10个字符之间",trigger: "blur"}
       ],
        password:[
          { required:true,message:"请输入密码",trigger:"blur"},
          {min:6,max:15,message: "密码的长度在6~15个字符之间",trigger: "blur"}
        ],
        email:[
          { required:true,message:"请输入邮箱",trigger:"blur"},
          {validator:checkEmail,trigger: "blur"}
        ],
        mobile:[
          {required:true,message:"请输入手机号",trigger:"blur"},
          {validator:checkMobile,trigger: "blur"}
        ]
      },

      //控制编辑用户信息对话框的显示和隐藏
      editDialogVisible:false,
      //查询到的用户信息对象
      editForm: {},
      editFormRules:{
        email:[
          { required:true,message:"请输入邮箱",trigger:"blur"},
          {validator:checkEmail,trigger: "blur"}
        ],
        mobile:[
          {required:true,message:"请输入手机号",trigger:"blur"},
          {validator:checkMobile,trigger: "blur"}
        ]
      },
      // 控制分配角色对话框的显示与隐藏
      setRoleDialogVisible:false,
      //用户信息
      userInfo:[],
      //角色列表
      rolesList:[],
      // 已选中的角色id值
      selectedRoleId:""
    }
  },
  methods:{
    // 获取用户列表
   async getUserList(){
    const {data:res} = await this.$http.get("users",{params:this.queryInfo})
     if(res.meta.status !== 200) return this.$message.error("获取用户列表失败")
     this.userList = res.data.users
     this.total = res.data.total
    },
    // 监听pagesize改变的事件
    handleSizeChange(newSize){
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    // 监听页码值改变的事件
    handleCurrentChange(newPage){
      this.queryInfo.pagenum = newPage
      this.getUserList()
    },
    // 监听Switch开关状态的改变
   async userStateChanged(userInfo){
    const {data:res} = await this.$http.put(`users/${userInfo.id}/state/${userInfo.mg_state}`)
     if(res.meta.status !== 200){
       userInfo.mg_state = !userInfo.mg_state
      return this.$message.error("更新用户状态失败！")
     }
     this.$message.success("更新用户状态成功！")
    },
    //监听表单关闭事件，清空表单
    addDialogClose(){
     this.$refs.addFormRef.resetFields()
    },
    //点击按钮添加型用户
     addUser(){
     this.$refs.addFormRef.validate(async(valid)=>{
       if(!valid) return
       // 校验通过，发起请求
      const {data:res} = await this.$http.post("users",this.addForm)
       if(res.meta.status !== 201){
         return this.$message.error("添加用户失败!")
       }
       this.$message.success("添加用户成功!")
       // 关闭对话框
       this.addDialogVisible = false
       // 重新获取用户列表
       this.getUserList()
     })
    },

    //展示修改用户信息的对话框
   async showEditDialog(id){
      // 通过id查询用户信息
    const {data:res} = await this.$http.get(`users/${id}`)
     if(res.meta.status !== 200){
       return this.$message.error("查询用户信息失败")
     }
     this.editForm = res.data
     this.editDialogVisible = true
    },
   // 监听表单关闭事件，清空表单
    editDialogClose(){
     this.$refs.editFormRef.resetFields()
    },
    //点击按钮修改用户
    editUserInfo(){
     this.$refs.editFormRef.validate(async (valid)=>{
       if(!valid) return
       const {data:res} = await this.$http.put(`users/${this.editForm.id}`,{email:this.editForm.email,mobile:this.editForm.mobile})
       if(res.meta.status !== 200) return this.$message.error("修改用户信息失败")
       this.$message.success("修改用户信息成功")
       this.editDialogVisible = false
       this.getUserList()
     })
    },

    //根据id删除用户信息
   async removeUserById(id){
     // 弹框询问用户是否删除
     const confirmResult = await this.$confirm("此操作将永久删除该用户，是否继续？","提示",{
        confirmButtonText:"确定",
        cancelButtonText:"取消",
        type:"warning"
      }).catch((err)=>{
        return err
      })
     if(confirmResult === "cancel"){
       return this.$message.info("已取消删除")
     }
     const {data:res} = await this.$http.delete(`/users/${id}`)
     if(res.meta.status !== 200){
       this.$message.error("删除用户失败")
     }
     this.$message.success("删除用户成功")
     this.getUserList()
    },
    //显示分配角色对话框
    async setRole(userInfo){
     this.userInfo = userInfo
      // 获取所有的角色列表
    const {data:res} = await this.$http.get("roles")
      if(res.meta.status !== 200) return this.$message.error("获取角色列表失败")
      this.rolesList = res.data
     this.setRoleDialogVisible = true
    },

    //保存分配角色结果
    async saveRoleInfo(){
     if(!this.selectedRoleId){
       return this.$message.error("请选择要分配的角色")
     }
     const {data:res} = await this.$http.put(`users/${this.userInfo.id}/role`,{rid:this.selectedRoleId})
      if(res.meta.status !== 200){
        return this.$message.error("分配角色失败")
      }
     this.$message.success("分配角色成功")
      this.getUserList()
      this.setRoleDialogVisible = false
    },
    // 监听分配角色对话框关闭事件
    setRoleDialogClosed(){
     this.selectedRoleId = ""
      this.userInfo = ""
    }
  },
  created() {
    this.getUserList()
  }
}
</script>

<style scoped>

</style>